perf tools: Use correct return type for readn function
Changing readn function return type to ssize_t because read returns
ssize_t not int.
Changing callers holding variable types as well.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1385634619-8129-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 28a0a89..9440481 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -151,12 +151,12 @@
return value;
}
-int readn(int fd, void *buf, size_t n)
+ssize_t readn(int fd, void *buf, size_t n)
{
void *buf_start = buf;
while (n) {
- int ret = read(fd, buf, n);
+ ssize_t ret = read(fd, buf, n);
if (ret <= 0)
return ret;